Avoid reloading AnyVal

Author: odersky

compiler/src/dotty/tools/dotc/core/Definitions.scala

@@ -271,7 +271,14 @@ class Definitions {
   def AnyType: TypeRef = AnyClass.typeRef
   @tu lazy val ScrutableClass: ClassSymbol = completeClass(enterCompleteClassSymbol(ScalaPackageClass, tpnme.Scrutable, Abstract, AnyType :: Nil), ensureCtor = false)
   def ScrutableType: TypeRef = ScrutableClass.typeRef
-  @tu lazy val AnyValClass: ClassSymbol = completeClass(enterCompleteClassSymbol(ScalaPackageClass, tpnme.AnyVal, Abstract, List(ScrutableType)))
+  @tu lazy val AnyValClass: ClassSymbol =
+    val res = completeClass(enterCompleteClassSymbol(ScalaPackageClass, tpnme.AnyVal, Abstract, List(ScrutableType)))
+    // Mark companion as absent, so that class does not get re-completed
+    val companion = ScalaPackageVal.info.decl(nme.AnyVal).symbol
+    companion.moduleClass.markAbsent()
+    companion.markAbsent()
+    res
+
   def AnyValType: TypeRef = AnyValClass.typeRef
 
     @tu lazy val Any_== : TermSymbol          = enterMethod(AnyClass, nme.EQ, methOfAny(BooleanType), Final)